311312404 has 12 divisors (see below), whose sum is σ = 586704244. Its totient is φ = 143682624.

The previous prime is 311312399. The next prime is 311312423. The reversal of 311312404 is 404213113.

It can be written as a sum of positive squares in 2 ways, for example, as 66389904 + 244922500 = 8148^2 + 15650^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2993337 + ... + 2993440.

Almost surely, 2^311312404 is an apocalyptic number.

It is an amenable number.

311312404 is a deficient number, since it is larger than the sum of its proper divisors (275391840).

311312404 is a wasteful number, since it uses less digits than its factorization.

311312404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5986794 (or 5986792 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 311312404 is about 17644.0472681298. The cubic root of 311312404 is about 677.7436778170.

Adding to 311312404 its reverse (404213113), we get a palindrome (715525517).

The spelling of 311312404 in words is "three hundred eleven million, three hundred twelve thousand, four hundred four".